US757963A - Planer. - Google Patents

Description

No. 757,963. PATENTED APR. 19, 1904.

E. RAWSON.

PLANER.

APPLICATION FILED MAY 21, 1903 N0 MODEL. 5 SHEETS-SHEET 1.

WITNESSES. IN VENTOB er a W v A TTORNE rs.

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o INVENTOI? 'EcZWa/rZfihu 3071/ PATENTED APR. 19, 1904. B. RAWSON.

PLANER.'

APPLICATION nun MAY 21, 1903.

N0 MODEL.

PATENTED APR. 19, 1904.

E. RAWS'ON.

PLANER.

APPLICATION FILED my 21, 1903.

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INVENTOI? Edwardian am W/ TNESSES:

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4 0 9 1 9 1 R P A D E T N E T A P IE. RAWSON.

PLANER.

APPLICATION FILED MAY 21, 1903.

6 SHEETS-SHEET 4.

B0 MODEL.

A TTORNE Y8.

WI 7N E SSE S J In: News PETERS cu. moroumu, WASHINGTON. D c.

PATENTED APR. 19, 1904.

B. RAWSON.

PLANER.

APPLICATION FILED MAY 21, 1903.

5 SHEETS-SHEET 5.

N0 MODEL.

WITNESSES" N VE/V TOR Edward .EQWJ'QI'L A TTORNZEY Patented April 19, 1904.

PATENT OFFICE.

FJDYVARD RAWSON, OF MOSCOW, IDAHO.

PLANER.

SPECIFICATION forming part of Letters Patent N0. 757,963, dated April 19, 1904.

Application iiled May 21, 1903- To all w/wm/ it TIL/by concern.-

Be it known that I, EDWARD RAWsoN, a citizen of the United States, and a resident of Moscow, in the county of Latah and State of Idaho,

have invented a new and Improved Planer, of

cutter-head to treat materials of different thicknesses without stopping the machine.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a perspective view of the improvement. Fig. 2 is a sectional plan view of the same on the line 2 2 of Fig. 3. transverse section of the same on the line 3 3 of Fig. 2. Fig. 4; is an enlarged rear longitudinal sectional elevation on the line l 4: of Fig. 2. Fig. 5 is an enlarged plan view, partly in section, of the reversing and speed-changing mechanism for the lower feed-rollers. Fig. 6 is an end elevation of the same, and Fig. 7 is a sectional plan view of the device for raising and lowering the cutter-head and upper feed-rolls.

The planer is mounted on a suitably-constructed bed A, supporting a feed-table B, through which extend transverse lower driven feed-rolls O, journaled in suitable bearings on the sides of the bed A and operating in conjunction with upper feed-rolls D, journaled in spring-pressedbearings E, held to slide vertically in guideways E, formed on a frame F,

mounted to slide up and down in guideways A. arranged on the sides of the bed A, as plainly shown in the drawings. The feed rolls O and D are arranged in pairs, and pref- Fig. 8is a Serial No. 158,117. (No model.)

era-bly two pairs are located on one side of a transverse cutter-head G, and two other pairs are located on the opposite side of the said cutter-head. The shaft G of the cutter-head G is journaled in suitable bearings arranged on the frame F, and on the said cutter-head shaft G is secured a pulley G connected by a belt G with a pulley G, fastened on the main driving-shaft H, journaled in suitable bearings on the front end of the machine.

On the main shaft H are secured fast and loose pulleys H, connected by belt with other machinery to impart a rotary motion to the shaft H, which by the pulley G, belt G", and pulley G imparts a rotary motion to the cutter-head Or, so as to plane the material fed under the cutter-head by the pairs of feed-rolls O and D. A belt-tightener G is connected with the belt G so as to give the necessary tension to the belt on adjusting the frame F up and down to bring the rolls D and the outtor-head G in a proper relation to materials of different thicknesses.

In order to adjust the frame F, carrying the upper feed-rolls D, and the cutter-head G vertically, the following device is provided: The top cross-bar F of the frame F extends in vertical guideways A on the standards A, forming part of the bed A, and in the said crossbar F screw vertically disposed screw-rods F mounted to turn in atop cross-beam A, connecting the upper ends of the standards A with each other. On the upper ends of the cross-rods F are secured bevel gear-wheels F in mesh with bevel gear-wheels F, fastened on a transverse shaft F", journaled in suitable bearings attached to the top cross-beam A. On the inner end of the shaft F is secured a bevel gear-wheel F in mesh with a bevel gearwheel F secured on the upper end of a shaft I, journaled at its upper end in'a bearing A, attached to one of the standards A On the shaft I is secured a spur-wheel I, in mesh with a spur-wheel 1 secured on a shaft 1 journaled at its upper end in a bearing A, secured to the inner face of one of the sides of the bed A, as plainly indicated in Fig. 3. (See also Fig. 7.) The lower endsof the shafts I and I carry bevel friction-wheels I and I adapted to mesh with corresponding friction-wheels I and I or with a double-bevel friction-wheel 1 according to the direction in which the lower ends of the shafts I and I are moving that is, when moved apart the wheels I and I move in mesh with the wheels I and I and when the shafts are moved toward each other then the wheels I and I move simultaneously in mesh with the double wheel I. The bevel friction-wheels I", I and I are secured on a transverse shaft 1", journaled in suitable bearings carried on the bed A, and on the said shaft I is secured a pulley 1 connected by a belt I with a pulley 1 secured on the main shaft H. Now when the latter is rotated the said pulleys I and 1 and the belt I impart a rotary motion to the shaft 1, Which by either of the friction-wheels I or 1 or the double wheel I imparts a rotary motion to the wheels I and I in either a forward or backward direction, and consequently the shaft I is rotated either forwardly or backwardly, and a like motion is given to the shaft F which by the bevel gear-wheels F and F rotates the screw-rods F to move the frame F upor down, according to the position of the wheels I and 1 relative to the wheels 1, 1 and I It is understood that the shafts I and I are mounted sufficiently loose in their bearings so that the lower ends of "the shafts can be swung toward or from each other for the purpose above described. The lower ends of the shafts I and I are engaged by bearings J and J, formed on arms J and J fulcrumed at J on the bed A and pivotally connected at their free ends bylinks J 5 and J 6 with a disk J mounted to turn on the bed A and connect ed by an arm J 8 and link J" with a hand-lever J fulcrumed on one side of the bed A and underthe control of the operator. Now by swinging the hand-lever J in the direction of the arrow (0, as indicated in Fig. 1, the links J and J swing the arms J and J apart to move the friction-wheels, I and l in mesh with the friction-wheels 1 and I to rotate the shaft I in one direction for moving the frame F upward, and with it the cutter-head G and the upper feed-rolls D. When the operator swings the lever J in the inverse direction of the arrow (0, then the turning of the disk J 7 causes the links J 5 and J G to swing the arms J 2 and J toward each other to move the friction-wheels I and 1 simultaneously in mesh with the double friction-wheel 1*, so that the shaft I is rotated in an opposite direction, and the frame F is caused to slide downward by the action of the screw-rods F, as previously mentioned. It is understood that the lever J normally stands in a vertical position, and the wheels I I then standin an intermediate non-contacting position relative to the wheels I, 1 and I and hence their continuous rotation does not affect the position of the frame F and the parts carried thereby unless the operator moves the hand-lever J either to the right or left, as above described. On the frame F is arranged a pointer F (see Fig. 1,) indicating on a linear graduation F formed on one of the standards A to indicate the exact distance the lower end of the cutter-head G is from the table B. Thus by the operator simply manipulating the lever J as described and watching the movement of the pointer F on the graduation F he is enabled to quickly set the cutter-head G and the upper feed-rolls D to the proper position, according to the thickness of the material to be treated. It will also be seen that this adjustment is carried out while the machine is running. In order to securely lock the frame F in position after the desired adjustment thereof is made, the operator screws up a wheel-nut F on the threaded end of a rod F connecting the sides of the frame F with each other, as plainly shown in Figs. 1 and 3.

The lower feed-rolls C are driven from the main shaft H, and in order to rotate the said feed-rolls C in either a forward or backward direction and at a high or a low rateof speed to permit a slow or fast feed of the material to be treated in either aforward or backward direction the following device is provided: A transverse shaft K is journaled in suitable bearings on the bed A and is provided at its inner end with a sprocket-wheel L, connected by a sprocket-chain L with a sprocket-wheel L secured on the shaft of the first feed-roll C, which latter is connected by sprocketwheels and sprocket-chain with the. next feedroll (J, and in a like manner the several feedrolls are connected with eachother, so that when the first feed-roll is driven from the shaft K the other feed-rolls rotate in unison with the same at the same speed and in the same direction. (See Figs. 2 and 4.) On the outer end ofthe shaft K is secured a double bevel gearwheel K, in mesh with pinions N and N, se-

cured on longitudinally-extending shafts l 2 N j ournaled in suitable bearings on the bed A. v

(See Figs. 1, 2, and 5.) On the forward ends of the shafts N and N are mounted to turn with and to slide on the same friction-pulleys N and N of which the pulley N extends between disks 0 and O and the pulley N extends between disks O and the said disks 0, O, and 0 being secured on the main shaft H. The pulleys N and N 5 are adapted to be moved inward or outward in a radial direction relative to the disks 0, O, and 0 so as to transmit the speed of the disks at a lower or higher rate of speed, according to the position which the pulleys N and N occupy inwardly or outwardly on the said disks. The

pulleys N and N 5 are adapted to be shifted on their shafts N 2 N by shifting-forks P, engaging annular recesses on the hubs of the saidpulleys N f and N, and-the said shiftingforks P are pivotally connected with cross- IIO heads P, sliding loosely on the shafts i 2 N and the cross-heads P are connected by links P with a hand-lever Q under the control of the operator and fulcrumed at its lower end on the bed A. On the hand-lever Q is arranged a locking-lever Q. adapted to engage a notched segment Q for locking the lever Q in a desired position. Now by the operator swinging the lever Q in the direction of the arrow 6 the shifting-forks P are moved rearwardly to move the pulleys i 4 N outwardly relatively to the disks, and when the operator swings the lever in the inverse direction of the arrow then the pulleys N N are moved inwardly on the disks toward the shaft H, carrying the disks. The shafts N and N adj acent to the bevel gear-wheels N and N are journaled in a bearing N, fixed to the frame A, and the outer ends of the said shafts N 'N are journaled in arms R R, fulcrumed at their lower ends at R on a bracket attached to the bed A. The upper ends of the arms R and R are connected by links R R with a disk R journaled on the bracket attached to the bed A (see Figs. 1 and 6,) and on the said disk is secured a handle R, under the control of the operator and provided with a locking-lever R ,.adapted to engage a notched segment R carried by the said bracket. Now by the operator swing- 3 ing the hand-lever 1 6 transversely in the direction of the arrow 0 the disk R is turned so as to cause the links R R? to swing the arms R and R toward each other, so that the forward ends of the shafts V and N are swung in a like direction to move the pulleys l f and N simultaneously in frictional contact with the opposite faces of the middle disk O, and when the handle R is moved inthe inverse direction of the arrow 0 then the arms R and R are caused to swing apart, so that? a like movement is given to the outer ends of the shafts N and N andthe pulleys N" N are thus moved in frictional contact with the disks O and O (See Figs. 2 and 5.) Now when the pulleys N and N are in frictional contact with the disks O and O as previously explained, then the shaft K is rotated in one direction, and with it the lower feed-rolls O, to move the material fed between the pairs of feed-rolls O and D in the direction of the arrow d, and when the pulleys N* and N are in mesh with the middle disk O then the shaft K is rotated in an opposite direction, and with it the feed-rolls C, so that the material is moved in the inverse direction of the arrow (1 over the table B. Now the speed with which the shaft K and the feed-rolls C are rotated depends on the inward or outward position of the pulleys i f N on the disks O, O, and O, with which they are engaged at the time that is, when the pulleys N f and N are in an innermost posit-ion. Then a slower rotary movement is transmitted by the disks to the said pulleys, and consequently to the shafts N N and K and the feed-rolls, and when the pulleys N and N are in an outermost position on the said disks then a faster rotary motion is given to the feed-rolls.

On the feed-table B adjacent to the cutterhead G is arranged a longitudinally-extending guide S for the material to-abut on while passing over the feed-table under the cutterhead G, and opposite this guide S is arranged a side cutter-head T, secured on the upper end of a vertically-disposed shaft T, extending through a transverse slot B, formed in the feed-table B to allow moving this cutter-head T transversely nearer to or farther from the guide S, according to the width of the material under treatment. The cutter-head T has. its shaft T journaled in a bearing T (see Fig. 3,) mounted to slide transversely on a guideway T secured to the under side of the feedtable B. The bearing T is adapted to be fastened on the guideway T by a suitable setscrew T* after the cutter-head 'is adjusted relative to the width of the material under treatment, as above described. On the lower end of the shaft T .is secured a pulley T connected by a cross-belt Tv with a drum T secured on the main shaft H, so that when the latter is rotated the drum T belt T, and pulley T impart a rotary motion to the cutterhead T to trim one edge of the material to give the latter the desired width, it being understood that the other edge of the material rests on the guide S.

The operation is asfollows: When the several parts are in the. position illustrated in the drawings and the main shaft' H is rotated, then the material fed on the table Bin the di- -rection of the arrow d is moved forward by the pairs of feed-rolls C and D and carried underthe cutter-head G for the latter. to cut the face thereof to the thickness to which the machine is set. The side cutter-headT trims the outer edge of the material as the same passes 'rearwardly under the rearmost pair of feed-rolls O and D. Now when it is, desired to increase or decrease the speed with which the feed-rolls feed the material forward then the operator simply manipulates the lever Q correspondingly to shift the friction-pulleys N and N lengthwise on their shafts N N to move the said friction-pulleys in contact with the corresponding friction-disks nearer to or farther from the axis of the said disks. When it is desired to run the material backward, then the operator actuates the handle R, as previously described, so as to move the friction pulleys N and in contact with the middle disk O to cause a reversing of the motion of the lower feed-rolls G to run the material in the inverse direction of the arrow d. For changing the position of the cutter-head Gr and the upper feed-rolls D for treating thinner or thicker material the operator manipulates the lever J as previously de- Having thus described my invention, I claim as new and desire to secure by Letters Paten t 1. A planer provided with a bed, a frame .vertically slidable thereon and carrying upper feed-rolls and a cutter-head, lower feedrolls journaled in the said bed, a main shaft connected with the said cutter-head and the said lower feed-rolls, to rotate the same, and means for raising and lowering the said frame, the said means comprising screw-rods journaled on the said bed and screwing in the said frame, a shaft geared with the said screwrods, asecond shaft geared with the first shaft, a driving mechanism for the second shaft, and means under the control of the operator, for adjusting the said driving mechanism, to rotate the screw-rods in either a forward or backward direction, to raise or lower the-frame, as set forth.

2. A planer provided with a bed, a frame vertically slidable thereon and carrying upper feed-rolls and a cutter-head, lower feedrolls journaled in the said bed, a main shaft connected with the said cutterrhead and the said lower feed-rolls, to rotate the same, means forraising'and lowering the said frame, the said means comprising screw-rods journaled on the said bed and screwingin the said frame, a driving-gear for rotating the said screwrods from the said main shaft, and means under the control of the operator, for adjusting the said driving-gear, torotate the screw-rods in either a forward or backward direction, to raise or lower the frame, the said means comprising a lever under the control of the operator, a'disk mounted to turn and connected with the said lever, and an arm mounted to swing and pivotally connected with the said disk, the said arm engaging the driving-shaft of the said gearing, for throwing the latter in engagement with oppositely-disposed driving gear-wheels, as set forth.

3. A planer provided with feed-rolls, mechanism for rotating the same forward and backward at a higher or lower rate of speed, a driving-shaft geared with the feed-rolls and carrying a double-bevel gear-wheel, bevelpinions in mesh with the said bevel gearwheel, shafts carrying the said pinions, means under the control of-the operator, for moving the shafts toward and from each other, friction-pulleys on' the said shafts, driven disks for engagement on their. faces by the said friction-pulleys, and means under the control of the operator, for sliding the friction-pulleys on their shafts, to engage the frictiondisks nearer to or farther from their centers, as set forth.

4. In a planer, the combination with a bed, and a vertically-adjustable frame carrying the upper feed-rolls and the cutter, of screw-rods mounted in the bed and screwing into the frame, a horizontal shaft geared with the screw-rods, a vertical shaft geared with the horizontal shaft and mounted at its lower end in a movable bearing, a second vertical shaft geared with the firstnamed vertical shaft, and mounted in movable bearings, a gear on the lower end of each vertical shaft, a driven shaft provided with gears for engagement with the gears of the vertical shafts, and means for moving the bearings of the vertical shafts, as and for the purpose set forth.

5. In a planer, the combination with a bed, and a vertically-movable frame carrying the upper feed-rolls and the cutter, of a horizontal shaft, means for raising and lowering the frame from said shaft, a vertical shaft geared with the horizontal shaft and provided with a friction-wheel at its lower end, a second vertical shaft geared with the first-named vertical shaft and provided with a friction-wheel at its lower end, pivoted arms in which the vertical shafts are mounted, means for swinging said arms, a driven shaft, and three friction-wheels on the driven, shaft, one of the said wheels being a double-beveled wheel, as set forth.

6. Ina planer, the combination with a driving-shaft, and feed-rolls, of three frictiondisks on the driving-shaft, shafts extending between the disks, pivoted arms in which the shafts are mounted, means for swinging the arms on their pivots, friction-pulleys slidably mounted on the shafts between the disks, means for sliding said pulleys, a shaft geared with each of the said shafts, and means for operating one of'the feed-rolls from said shaft, as set forth.

7. In a planer, the combination of a driving- I shaft, feed-rolls, three friction-disks on the shaft, shafts extending between the disks, pivoted arms in which the shafts are mounted,

meanszfor swinging the arms on their pivots, friction-pulleys'slidably mounted on the shafts between the disks, means for sliding said pulleys, ashaft means for operating one of the fixed rolls from the said shaft, a double-bevel gear-wheel on said shaft, and a pinion on each of the shafts mounted in the swinging arms, as set forth.

8. In a planer, the combination with a bed,

and a vertically-sliding frame on the bed carrying the upper feed-rolls and the cutter, of screw-rods engaging the frame, a horizontal shaft geared, with the screw-rods, a vertical shaft geared with the horizontal shaft and provided with a friction wheel at its lower end, a second vertical shaft geared with the first-named vertical shaft and provided with a friction-wheel at its lower end, swinging bearings for the said vertical shafts, means for swinging said bearings, a driven shaft, and friction-wheels mounted on the driven ITO shaft, and With which the friction-Wheels of the vertical shafts engage, one of the said Wheels being double, as set forth.

9. In a planer, the combination With a bed,

and a sliding frame carrying the upper feedrolls and cutter, of a vertical shaft, mechanism for raising and lowering the frame from said shaft, a second shaft geared with the first shaft, swinging arms in which the said shafts are mounted, means for swinging said arms,

EDWARD RAWSON.

Witnesses:

H. R. SMITH, F. 0. WHITE

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